Also: Concerning war creating activity: Kusari had its most active days back in .84 when the most profitable trade run was between Kusari and Rheinland. The ability to make money creates activity, no need to rely on war.
Then the Helium-3 traders should bring the desired effect of more people in Kusari. Lots of money in the gas business, I'm surprised that so few are doing the runs. Core Kusari "lacking lawfuls", it should be pirate heaven!